Precision Engineering. Aggressive Sound. Zero Drone.
The NM Engineering Downpipe-Back Exhaust System is the ultimate performance upgrade for the F-Chassis MINI. Unlike generic exhaust kits, this system is a full 3-inch, high-flow masterpiece designed to unlock power while maintaining the daily-driver comfort that MINI owners expect.
Constructed entirely from Aerospace-grade T304 Stainless Steel, this system replaces the restrictive factory piping from the downpipe back. By utilizing CNC mandrel bends and a low-restriction resonator, we’ve achieved a dyno-proven 10–14 HP gain while significantly reducing overall vehicle weight.
Tired of the highway "drone" common with aftermarket exhausts? Our Gen3/Gen4 system features a sophisticated Helmholtz Rear Canister. This secondary chamber is specifically engineered to cancel out low-frequency resonance during partial-throttle cruising. The result is a refined, well-rounded exhaust note that remains quiet on the freeway but unleashes a sharp, raspy growl under load. In Sport Mode, the 3-inch diameter tubing perfectly accentuates the signature F-Chassis "pops and burbles."
FEATURES
Premium Materials: 100% T304 Stainless Steel construction—inside and out—for a lifetime of corrosion resistance.
Maximum Flow: Continuous 3" (76mm) tubing with precision CNC mandrel bends for optimal exhaust gas velocity.
Elite Aesthetics: Includes oversized Dual 100mm (4") Polished Dual-Wall Tips for a bold, filled-out rear valence.
Direct Bolt-On: High-precision flanges and factory-style mounting hangers ensure a perfect fit without the need for cutting or welding.
Complete System: Connects directly to the factory V-band clamp at the downpipe for a seamless installation.
FITMENT
Designed specifically for the following North American models:
F56: MINI Hardtop 2-Door (2014–2024)
F57: MINI Convertible (2016–2024)
NOTES
North America Only: This system is designed for North American spec vehicles. Non-US applications may require slight fabrication to the exhaust system (not the vehicle) for proper fitment.
Off-Road Use: Intended for off-road or competition use only.
Installation: No cutting required; utilizes the factory V-band location for a true bolt-on experience.
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